Caroline Wozniacki faced a battle to be fit for the Australian Open after being reduced to tears during a dramatic defeat by Agnieszka Radwanska at the Sydney International on Wednesday.
Wozniacki lost 3-6 7-5 6-2 in a late-night quarterfinal thriller, which could signal the end of her reign as world number one with Czech Republic’s Petra Kvitova in position to take top spot within 48 hours. Kvitova is guaranteed to end Wozniacki’s stay at number one if she wins the final in Sydney, scheduled for Friday night.
The Dane’s left wrist was strapped when trailing 1-2 in the deciding set, just five days before the start of the year’s first grand slam.
World No. 8 Radwanksa will play Belarus’s world No. 3 Victoria Azarenka in the semi-finals. World No. 2 Kvitova lines up against China’s world No. 5 Li Na.
Kvitova was highly impressive in her 6-0, 6-4 thumping of Slovakia's world number 21 Daniel Hantuchova.